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(11)

EP 2 678 748 A2

(12)

(88) Date of publication A3: 15.11.2012 (43) Date of publication: 01.01.2014 Bulletin 2014/01 (21) Application number: 12706413.7 (22) Date of filing: 21.02.2012

(51) International Patent Classification (IPC):  G05D 1/02(2006.01) B66F 9/06(2006.01) B66F 9/075(2006.01) (86) International application number: PCT/US2012/025849 (87) International publication number: WO 2012/115920 (30.08.2012 Gazette 2012/35)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 23.02.2011 US 201113033169 (71) Applicant: Crown Equipment Corporation New Bremen, OH 45869 (US)

(72) Inventors: CASTANEDA, Anthony, T. Troy, OH 45373 (US) McCROSKEY, William, W. Sidney, OH 45365 (US) SCHLOEMER, James, F. New Bremen, OH 45869 (US) SCHUMACHER, Mark, E. New Knoxville, OH 45871 (US) SIEFRING, Vernon, W. Covington, OH 45318 (US) WELLMAN, Timothy, A. Coldwater, OH 45828 (US) (74) Representative: Moore, Michael Richard  Keltie LLP Fleet Place House 2 Fleet Place London EC4M 7ET London EC4M 7ET (GB)